{"id":34051,"date":"2025-11-16T14:56:18","date_gmt":"2025-11-16T13:56:18","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=34051"},"modified":"2026-03-20T09:52:14","modified_gmt":"2026-03-20T08:52:14","slug":"william-optics-61-guidescope-guide-star-apo-gold","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-61-guidescope-guide-star-apo-goud\/","title":{"rendered":"William Optics 61 Guidescope Guide Star Apo Gold"},"content":{"rendered":"

Sharp stars, easy tracking<\/strong><\/h3>\n\n\n\n

The William Optics 61 is a guidescope that offers more than an ordinary viewfinder. The lens with FPL-53 glass provides sharp constellations. This helps you with accurate tracking control of your telescope. Perfect for refractors from 700 to 1200 mm focal length.<\/p>\n\n\n\n

\n
\"William<\/figure>\n<\/figure>\n\n\n\n

Astrophotography with optional flattener<\/strong><\/h3>\n\n\n\n

With the Flat61 flattener, you can also use the GS61 for astrophotography. Ideal for small cameras and compact setups. This way you get sharp images without the hassle.<\/p>\n\n\n\n

Easy focusing<\/strong><\/h3>\n\n\n\n

Helicoidal focusing is through the dew cap. Loosen the ribbed counter ring, slide the hood to focus, and tighten again. The back has a retractable extension for added flexibility. So you'll always find the perfect focus quickly.<\/p>\n\n\n\n

\n
\"William<\/figure>\n<\/figure>\n\n\n\n

Solid and completely built<\/strong><\/h3>\n\n\n\n

The tube is made of aluminum, lightweight (1.44 kg) and 340 mm long. The guidescope has a dovetail for easy mounting and comes with a transport bag. Everything is designed to keep your setup stable and mobile.<\/p>\n\n\n\n

Specifications<\/strong><\/h3>\n\n\n\n

Optics<\/strong><\/h4>\n\n\n\n
Feature<\/th>Description<\/th><\/tr><\/thead>
Lens diameter (mm)<\/td>61<\/td><\/tr>
Focal length (mm)<\/td>360<\/td><\/tr>
Aperture ratio (f\/)<\/td>5,9<\/td><\/tr>
Optics coating<\/td>Multiple<\/td><\/tr>
Resolution<\/td>2,3\u2033<\/td><\/tr>
Limit value (mag)<\/td>10,3<\/td><\/tr>
Light output<\/td>50<\/td><\/tr>
Max. useful magnification<\/td>100\u00d7<\/td><\/tr>
Type<\/td>Refractor<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Focuser<\/strong><\/h4>\n\n\n\n
Feature<\/th>Description<\/th><\/tr><\/thead>
Connection (camera side)<\/td>M54<\/td><\/tr>
Ocular connection<\/td>2\u2033<\/td><\/tr>
Fine control<\/td>Yes<\/td><\/tr>
Ring clamp<\/td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Mounting & accessories<\/strong><\/h4>\n\n\n\n
Feature<\/th>Description<\/th><\/tr><\/thead>
Dovetail<\/td>Yes<\/td><\/tr>
Transport bag<\/td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

General<\/strong><\/h4>\n\n\n\n
Feature<\/th>Description<\/th><\/tr><\/thead>
Type<\/td>Guiding<\/td><\/tr>
Design<\/td>Guidescope<\/td><\/tr>
Exterior material<\/td>Aluminum<\/td><\/tr>
Weight (g)<\/td>1440<\/td><\/tr>
Length (mm)<\/td>340<\/td><\/tr>
Color<\/td>Gold<\/td><\/tr>
Observation goals<\/td>Astrophotography (Guidescope)<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

William Optics 61 comes with FPL-53 glass for sharp stars, a helicoidal focus, Vixen-style dovetail and a transport bag. \u00a0<\/p>","protected":false},"featured_media":97483,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[643],"product_cat":[469,3064,3104,56],"product_tag":[],"class_list":["post-34051","product","type-product","status-publish","has-post-thumbnail","product_brand-william-optics","product_cat-astro-fotografie","product_cat-guidescopes","product_cat-overige-astrofotografie-accessoires","product_cat-telescoop-accessoires","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":105495,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-new-skyline-pro-16\/","url_meta":{"origin":34051,"position":0},"title":"Levenhuk New Skyline PRO 16\u2033 \u2013 406\/1830 Dobson","author":"Abdullah Ibrar","date":"03-04-2026","format":false,"excerpt":"The Levenhuk New Skyline PRO 16\" \u2013 406\/1830 Dobson comes with 10 mm and 25 mm Pl\u00f6ssl eyepieces, an 8x40 optical finderscope, and a primary mirror cooling system. 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